Vulnerability from bitnami_vulndb
Published
2025-09-04 17:48
Modified
2025-09-04 18:07
Summary
Windows Defender Application Control Security Feature Bypass Vulnerability
Details

A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC enforcement. An attacker who successfully exploited this vulnerability could execute PowerShell commands that would be blocked by WDAC.

To exploit the vulnerability, an attacker need administrator access on a local machine where PowerShell is running. The attacker could then connect to a PowerShell session and send commands to execute arbitrary code.

The update addresses the vulnerability by correcting how PowerShell commands are validated when WDAC protection is enabled.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "powershell",
        "purl": "pkg:bitnami/powershell"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.0.8"
            },
            {
              "introduced": "7.1.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "SEMVER"
        },
        {
          "events": [
            {
              "introduced": "7.0.8"
            },
            {
              "last_affected": "7.0.8"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-0951"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "\u003cp\u003eA security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC enforcement. An attacker who successfully exploited this vulnerability could execute PowerShell commands that would be blocked by WDAC.\u003c/p\u003e\n\u003cp\u003eTo exploit the vulnerability, an attacker need administrator access on a local machine where PowerShell is running. The attacker could then connect to a PowerShell session and send commands to execute arbitrary code.\u003c/p\u003e\n\u003cp\u003eThe update addresses the vulnerability by correcting how PowerShell commands are validated when WDAC protection is enabled.\u003c/p\u003e",
  "id": "BIT-powershell-2020-0951",
  "modified": "2025-09-04T18:07:55.535Z",
  "published": "2025-09-04T17:48:31.593Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0951"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0951"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Windows Defender Application Control Security Feature Bypass Vulnerability"
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.